For Shop Owners

P1451 - EVAP Control System Canister Vent Solenoid Circuit Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3 What does this mean?

Possible causes

  • Faulty Canister Vent Solenoid
  • Canister Vent Solenoid harness is open or shorted
  • Canister Vent Solenoid electrical circuit poor connection
  • Faulty Powertrain Control Module (PCM)
What does this mean?

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1451 Description

The Powertrain Control Module (PCM) monitors the Canister Vent (CV) solenoid circuit for an electrical failure. The test fails when the signal moves outside the minimum or maximum allowable calibrated parameters for a specified canister vent duty cycle by PCM command.
OBDII Code P1451 - EVAP Control System Canister Vent Solenoid Circuit Malfunction -

P1451 Information for specific makes

P1451 ACURA Two Way Valve Bypass Valve Control Circuit High Voltage
P1451 AUDI Secondary Air Injection Circuit Short To Ground
P1451 BMW Diagnostic Module Tank Leakage Switching Solenoid Control Circuit Signal Low
P1451 BUICK Barometric Pressure Sensor Performance
P1451 CADILLAC Barometric Pressure Sensor Performance
P1451 CHEVROLET Barometric Pressure Sensor Performance
P1451 DODGE Diesel Particulate Filter System Performance
P1451 FORD EVAP Control System Canister Vent Solenoid Circuit Malfunction
P1451 GMC Barometric Pressure Sensor Performance
P1451 LAND-ROVER Leak Detection Pump
P1451 LEXUS Fuel Tank Pressure Sensor Range/Performance
P1451 LINCOLN EVAP Control System Canister Vent Solenoid Circuit Malfunction
P1451 MAZDA EVAP Canister Vent Solenoid Malfunction
P1451 MERCURY EVAP Control System Canister Vent Solenoid Circuit Malfunction
P1451 SAAB Evaporative Emission Pressure Sensor In Fuel Tank Range/Performance Problem
P1451 SUZUKI Barometric Pressure Sensor Performance
P1451 TOYOTA Fuel Tank Pressure Sensor Range/Performance
P1451 VOLKSWAGEN Secondary Air Injection Circuit Short To Ground

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P1451 Comments

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Any information is appreciated. Thanks
Repair Importance Level: 3
1=Low 2=Medium 3=High
Repair Difficulty Level: 3
1=Easy 2=Moderate 3=Hard

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Posted and Edit by 08-23-2016

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